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8380539072 = 2633233741139
BaseRepresentation
bin1111100111000010…
…01110000011000000
3210122001110111101000
413303201032003000
5114130404222242
63503332012000
7414451256343
oct76341160300
923561414330
108380539072
113610661054
12175a761000
13a3732c779
1459704445a
15340b17a4c
hex1f384e0c0

8380539072 has 448 divisors, whose sum is σ = 27241804800. Its totient is φ = 2518179840.

The previous prime is 8380539047. The next prime is 8380539077. The reversal of 8380539072 is 2709350838.

It is not an unprimeable number, because it can be changed into a prime (8380539077) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 60291579 + ... + 60291717.

It is an arithmetic number, because the mean of its divisors is an integer number (60807600).

Almost surely, 28380539072 is an apocalyptic number.

8380539072 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8380539072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13620902400).

8380539072 is an abundant number, since it is smaller than the sum of its proper divisors (18861265728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8380539072 is a wasteful number, since it uses less digits than its factorization.

8380539072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 8380539072 is about 91545.2842695898. The cubic root of 8380539072 is about 2031.2216571768.

The spelling of 8380539072 in words is "eight billion, three hundred eighty million, five hundred thirty-nine thousand, seventy-two".